Kellco Investments President (2001-)Noble Energy President and CEO (1986-2000)Noble Energy President and CEO, Samedan Oil Corp.
Member of the Board of Cabot Oil & Gas (2003-)
Member of the Board of Lone Star Technologies Inc. (2001-)
Member of the Board of Noble Energy (as Chairman, 1992-2001)
Member of the Board of OGE Energy (1996-)
Member of the Board of Seitel, Inc. (2004-05)
Member of the Board of Smith International (2006-10)